Dovetailing-machine.



No. 761,452. PATENTED MAY 31, 1904.

' 0. W. DAKE.

DOVETAILING MACHINE.

I APPLICATION F ILED JULY 3, 1 903.

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No.761,452. PATENTED MAY 31,1904.

- G. W.DAK-E.

DOVETAILING MAGHINE.

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Patented May 31, 1904. I

PATENT OFFICE.

CHARLES W. DAKE, F GRAND RAPIDS, MIoIIIeAN. ASSIGNOR TO T E ADVANCEMACHINERY (COMPANY, or TOLEDO, oH o.

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sPEoIFIoA'rIon'form'i part of Letters Patent No. 761,452, dated May 31,1904.

f I Application filed. July 3, 1903. Serial No. 164,227. (No model.)

7 To all whom it may concern.-

nying drawings, in which Be it known that I, CHARLES W." DAKE, a.citizen of the United States, residing at Grand Rapids, in the countyof. Kent and State of Michigan, have invented new and'useful Impro ve ments in Dovetailing-Machines, of which the following is a specification.

This invention relates to certain new and useful improvements indovetailing-machines;

and the invention consists in combining with a horizontal shaft a shaftsubstantially at right angles thereto and adapted to convey the motionto the operating parts of the dovetailingmachine through said last-namedshaft; also, in means incombination with the operative parts ofthedovetailing-machine whereby the same may be tilted or adjusted to anyrequired position.

The objects of my invention are, first, to increase the efficiency ofthe machine; second, to furnish adjustability to the parts of themachine carrying the dovetailing mechanism; third, to construct amachine that will occupy a minimum amount of floor-space in a factory; 1

fourth, to operate the machine from a horizontal shaft carried by astationary frame and to'convey the motion to the dovetail-cuttingmachinery by means of the second shaft orshafts. These objectsIaccomplish by means of the mechanism illustrated in the accompa-Figure-1 shows a side elevation of my invention in anupright position.Fig. 2 shows also a side elevation with the frame carrying thedovetailing mechanism tilted forward, preferably tilted to an angleofabout fortyfive degrees. Fig. 3 shows a front elevation of the machine.

In the drawings, A shows the frame which supports the dovetailingmechanism and which is preferably connected to the base-frame B B, ashereinafter'described. The base-frame B B is rigidly secured in positionby any suitable means.

0 and 0 show the head or carriage which is adapted to support thestockto be operated upon by the dovetailing-cutters.

D shows the spindle-supporting frame, constructed in any suitablemanner.

D is an adjusting-screw for adjusting the frame D.

The frame A is provided with cutting-tools of any suitable kind formaking the dovetail grooves.

' Eis a horizontal shaft suitably journaled in the lower or base frameand is provided with driving band-pulleys F, which pulleys are connectedwith any suitable power. The shaft E carries the beveled gear-wheels HH, as is clearly shown in Fig. 3.

M represents shafts substantially at right angles to the shaft E, andeach shaft M is provided with a gear-wheel G at its lower end and withgear-wheels M at its upper end for driving the spindles N of the cutterK. The lower frame D is held together by bolts 0 or other suitablemeans.

The dovetail mechanism may be of any well- .known kind and does not initself contain any part of my invention. This dovetail mechanism issupported by the frames A and D, as above described.

The shaft Eforms a'center or pivotal point for adjusting the frame A andconnects the frame A to the base-support. The connection of the shaft Eby means of the beveled gears H H to the gears M allows for the. tiltingofthe frame A without disconnecting the gears. The center frame can betilted forward from the position shown in Fig. 1 to the position shownin Fig. 2 and can be adjusted to any point between said positions bymeans of the slots L and the cap-screws I I.

I prefer to have the tilting arranged from a perpendicular to an angleof forty-five degrees therefrom; but it may be varied.

In practice two boards will preferably be placed at one and the sametime in the machine, one of them being arranged Vertically and the otherhorizontally, their' edges overlapping one another, the boards beingheld in position by eccentrically-mounted rollers P and R of well-knownconstruction. By tilting the machine in the manner described the boardsmay be dropped in by gravity and automatically carried to place. Bymaking the pivotal shaft the driving-shaftl dispose of thecounter-shaft, and thereby economize floorspace and save considerablepower which would be taken up by friction were a countershaft employed.

Having thus described my invention, what I claim to have invented, anddesire to secure by Letters Patent, is-

1. In a dovetailing-mztchine, the combination with a base-frame, and ahorizontal driving-shaft journaled in the base-frame, of a tilting upperframe pivotally connected at its lower end on the driving-shaft andadjustably connected intermediate its ends to the baseframe, dovetailingmachinery carried by the tilting frame, and means for actuating saidmachinery from the said driving-shaft, substantially as described.

2. In a doveta1l1ng-maclnne, the combination with a base-frame and ahorizontal driving-shaft journaled in the base-frame, of a tilting upperframe pivotally connected at its lower end on the driving-shaft andadjustably connected intermediate its ends to the baseframe, dovetailingmachinery carried by the tilting frame and driven from saiddrivingshaft, and a head carried by the upper end of the tilting frameand provided with means for carrying two pieces of board at a timearranged at right angles to each other, substantially as described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHARLES IV. DARE. Witnesses:

MARY S. TOOKER, A. (I. DENISON.

